Science, asked by drrdsharma1301, 10 months ago

The amount of oxygen in the earthâ€™s atmosphere is
(a) 78%
(b) 21%
(c) 0.01%
(d) 3%

Answers

Answered by vaishnavi012301

2

Answer:

hiii

option b

hope u got it

mark it as brainliest ✌

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